Antibiotic use in infancy and the risk of asthma in Mexican American children

Objective: This study examined the associations of antibiotic use in infancy with lifetime doctor-diagnosed asthma and current wheeze among Mexican American children. Methods: In a population-based, cross-sectional investigation, parents of 2023 children 4–18 years of age completed a questionnaire/interview addressing respiratory conditions, antibiotic use, and covariates. Results: In adjusted analyses, among children without history of ear infections in infancy, children who used antibiotics ≥3 times and 1–2 times were more likely to report doctor-diagnosed asthma compared with their peers who did not use antibiotics in infancy [adjusted odds ratio (aOR)?=?5.14, 95% confidence interval (CI): 2.88–9.17, and aOR?=?2.15, 95% CI: 1.26–3.69, respectively, p trend < 0.0001]. The respective aORs for current wheeze were 3.67 (95% CI: 1.95–6.89) and 1.63 (95% CI: 0.91–2.95). Antibiotic use in infancy was not associated with asthma or current wheeze in children who had ear infections in infancy. In additional analyses, antibiotic use in infancy was associated with asthma in children without parental history of asthma or allergies (aOR?=?2.73, 95% CI: 1.70–4.39) but not in those with parental history of asthma or allergies. Among Mexico-born participants born in rural areas, antibiotic use in infancy was associated with a seven-fold increase in risk of asthma (aOR?=?7.21, 95% CI: 1.46–35.65), while the association was non-significant in Mexico-born children born in urban areas in Mexico. Conclusions: Antibiotic use in infancy may increase the risk of asthma and wheezing, but these associations were limited to subgroups of children.     

Associations of Acculturation and Country of Birth with Asthma and Wheezing in Mexican American Youths

Background: Mexican Americans have lower rates of asthma than other ethnic groups in the United States.    Objective: To examine the relationship between country of birth and acculturation with asthma and wheezing among Mexican American youths.    Methods: We used Chi-squared statistics and logistic regression analyses to determine the associations of country of birth and acculturation with asthma and wheezing among 1,770 Mexican Americans age 12-19 years who participated in the National Health and Nutrition Examination Survey 1999-2002.    Results. Mexican American adolescents born in the United States and those with high acculturation levels reported significantly higher prevalence rates of asthma, wheezing, and hay fever than their peers with low acculturation levels and born in Mexico. In multivariate analyses, youths with a high acculturation level had a higher risk of asthma than those with a low acculturation level independent of country of birth. Highly acculturated youths born in the US had a higher risk for wheezing compared with less acculturated US-born or Mexico-born participants after adjusting for confounding variables. In contrast, associations of asthma and wheezing with country of birth were not significant after controlling for acculturation. Conclusions. Our findings showed that both acculturation and country of birth were linked with the risk of asthma and wheezing, with acculturation having stronger effects than country of birth, among Mexican American youths. These findings may imply that factors modified by immigration and acculturation could influence the risk of asthma and wheezing. Identification of such factors could help in the design of asthma prevention programs.     

Associations of Acculturation and Country of Birth with Asthma and Wheezing in Mexican American Youths

Background: Mexican Americans have lower rates of asthma than other ethnic groups in the United States. Objective: To examine the relationship between country of birth and acculturation with asthma and wheezing among Mexican American youths. Methods: We used Chi-squared statistics and logistic regression analyses to determine the associations of country of birth and acculturation with asthma and wheezing among 1,770 Mexican Americans age 12–19 years who participated in the National Health and Nutrition Examination Survey 1999–2002. Results. Mexican American adolescents born in the United States and those with high acculturation levels reported significantly higher prevalence rates of asthma, wheezing, and hay fever than their peers with low acculturation levels and born in Mexico. In multivariate analyses, youths with a high acculturation level had a higher risk of asthma than those with a low acculturation level independent of country of birth. Highly acculturated youths born in the US had a higher risk for wheezing compared with less acculturated US-born or Mexico-born participants after adjusting for confounding variables. In contrast, associations of asthma and wheezing with country of birth were not significant after controlling for acculturation. Conclusions. Our findings showed that both acculturation and country of birth were linked with the risk of asthma and wheezing, with acculturation having stronger effects than country of birth, among Mexican American youths. These findings may imply that factors modified by immigration and acculturation could influence the risk of asthma and wheezing. Identification of such factors could help in the design of asthma prevention programs.     

Early Respiratory Infections and Asthma Among New York City Head Start Children

Background. Respiratory infections in neonates have been found to predict wheeze among young children. We hypothesized that among preschool children from low-income minority communities in New York City, current asthma would be associated with a history of respiratory infection in the first few months after their birth. Methods. We asked parents of children in New York City Head Start centers (preschool programs for children of low-income families) to respond to a questionnaire covering demographic factors, lifestyle, home environment, and health history, including a detailed history of respiratory conditions. We used logistic regression to model the association of asthma and asthma severity with history of respiratory infections, controlling for gender, ethnicity, family history of asthma, and other factors. Results. Among 1,022 children (mean age 4± 0.6 years) whose parents provided information about their health history, 359 (35%) met our criteria for asthma. Overall, 22% had had a cold by 6 months and 17% an ear infection by 8 months of age. In multivariable models, children with asthma had had more colds (OR = 2.8, 95% confidence interval [CI] 1.4-6.0) and ear infections (OR = 3.4, 95% CI 1.7-6.9) in the past year than other children. Associations of respiratory infections with emergency department use for asthma (as a measure of severity) were similar. In models that did not control for infections in the past year, ages at first cold and first ear infection were associated with asthma and emergency department visits in the past year. Conclusions. In this sample of preschool children, respiratory infections were common and were associated with asthma and health care utilization for asthma exacerbations. If these findings are confirmed, preventive measures among children who develop such infections at a very early age should be explored to help reduce the burden of asthma in this age group.     

Asthma and Asthma Severity among African American Adults in the Jackson Heart Study

The aims of this study were to investigate the baseline prevalence of and risk factors associated with asthma, classify asthma severity, and describe medication use in a population-based sample of African American men and women 21 to 84 years of age from the Jackson Heart Study (JHS). Participants provided responses to respiratory and medical history questions and a medication inventory and underwent spirometry and other clinical examinations. These data were used to examine the extent to which novel and traditional risk factors were associated with asthma. Of the 4,098 participants included in this analysis, 9.4% reported lifetime asthma (5.7% current, 3.7% former), and current asthma was higher in women (6.8%) than in men (3.8%). An additional 9.8% reported an attack of wheeze with shortness of breath or non-doctor confirmed asthma (i.e., “probable” asthma). The mean forced expiratory volume in 1 second (FEV₁)% predicted was lower in those reporting current asthma (women: 83.7 ± 18.0; men: 75.2 ± 16.8) compared to those not reporting asthma (women: 95.6 ± 16.7; men: 91.7 ± 16.0). Current and probable asthma was associated with lower serum cortisol levels and hypertension medication use, along with traditional risk factors (i.e., lower socio-economic status, higher global stress scores, obesity, and fair to poor perceived general health). Severe asthma was low among participants reporting current (9.8%), former (3.3%), and probable (4.9%) asthma. Asthma medication use was reported by nearly 60% of the participants reporting current asthma. Asthma in African American adults is associated with decreased serum cortisol, hypertension medication use, and considerable lung function impairment compared to those who did not report asthma. The prevalence of asthma in the JHS is lower than state and national estimates, although the estimates are not directly comparable. Furthermore, asthma is drastically underdiagnosed in this population.     

Associations of Doctor-Diagnosed Asthma with Immigration Status,Age at Immigration,and Length of Residence in the United States in a Sample of Mexican American School Children in Chicago

Objectives. Among Mexican Americans in the United States, children who were born in the US had higher rates of asthma than their Mexico-born peers. The purpose of this study was to examine the associations of doctor-diagnosed asthma with immigration-related variables and to investigate whether these associations could be explained by factors that may change with migration. Methods. We surveyed parents of 2,023 school children of Mexican descent and examined the associations of asthma with nativity, age at immigration, and length of residence in the US after adjusting for potential confounding variables. Results. In multivariate analyses, US-born children had a 2.42-fold (95% confidence interval [CI]: 1.52–3.83) increased odds of asthma compared with their Mexico-born peers. Mexico-born participants who moved to the US before 2 years of age were almost twice as likely to experience asthma compared with Mexico-born children who moved to the US ≥2 years of age. In addition, Mexico-born participants who lived in the US for 10 years or more were 2.37 times more likely to have asthma than Mexico-born students who lived in the US for less than 10 years. These associations were not explained by a wide variety of factors such as place of residence in infancy; exposure to animals/pets; history of infections, Tylenol use, and antibiotic use in infancy; breastfeeding; exposure to environmental tobacco smoke; daycare attendance and number of siblings; and language use. Conclusions. Our findings point to the effects of nativity, age at immigration, and duration of residence in the US on the risk of asthma in Mexican American children, suggesting that potentially modifiable factors that change with migration may be linked with the disease. The findings of this study should stimulate further research to explain factors that may be responsible for the observed differentials in the risk of asthma among Mexican Americans.     

In utero exposure to pets is associated with asthma and wheezing in Mexican American children

Objective: To examine the associations of in utero and early life exposure to cats/dogs and birds with the risk of lifetime doctor-diagnosed asthma and other respiratory conditions in a sample of Mexican American (MA) children 4–18 years of age. Methods: This study is a population-based cross-sectional investigation of 1816 MA children. We conducted multiple logistic models examining the relationship of asthma and wheezing with exposures to cats/dogs and birds in utero, infancy and at the time of the survey adjusted for country of birth, family history of asthma/allergies, antibiotics use in infancy and other covariates. Results: In adjusted analyses, in utero exposure to cats/dogs and birds jointly was associated with increased odds of asthma (adjusted odds ratio (aOR): 2.89; 95% confidence interval (CI): 1.34–6.23), ever wheezing (aOR: 1.96; 95% CI: 1.11–3.46) and current exercise-induced wheezing (aOR: 3.16; 95% CI: 1.27–7.85) compared to children not exposed to these pets in utero. Children who were exposed to both cats/dogs and birds in utero had an elevated, albeit statistically non-significant, odds of current wheezing. Exposures in infancy and at the time of the survey to cats/dogs and birds were not associated with asthma or wheezing. Conclusions: In utero exposure to pets might be associated with an increased risk of asthma and respiratory conditions in a sample of non-affluent MA children.     

Mexican American Elders with Dementia in Long Term Care

Abstract

Previous research indicates the older Hispanic population is one of the fastest growing groups in the United States, and this increase presents unique problems in long-term care delivery for the dementia patient. Late interface with long-term care services results in delayed diagnosis, significant impairments, and prolonged caregiver burden. Understanding the unique cultural influences in this population will assist the gerontologist in providing appropriate health care services.     

耳内镜下鼓膜置管术治疗分泌性中耳炎的疗效观察

目的观察耳内镜下鼓膜置管术治疗分泌性中耳炎的疗效。方法将112例分泌性中耳炎患者分为对照组和治疗组,各53例。对照组采用传统药物治疗,治疗组采用耳内镜下鼓膜置管术治疗。结果 3个月后门诊复查鼓膜恢复情况、纯音测听和声导抗并结合患者当时症状、体征判断疗效。对照组75耳被治疗,痊愈37耳（49.3%）,好转21耳（28.0%）,总有效率为77.3%;治疗组77耳被治疗,痊愈56耳（72.7%）,好转18耳（23.4%）,总有效率达96.1%,两组间治愈率及总有效率均有显著性差异（P〈0.05）,治疗组均高于对照组。对照组治疗无效的17耳中,15耳于传统治疗3个月后在本院行耳内镜下鼓膜置管术,术后有6耳（40.0%）治愈,7耳（46.7%）好转,总有效率仍能达到86.7%。结论耳内镜下鼓膜置管术治疗分泌性中耳炎其总有效率及治愈率均明显高于传统药物治疗,且对传统药物治疗无效的患耳行耳内镜下鼓膜置管术仍能得到较好疗效,应在临床推广使用。     

Once-Daily Ciclesonide In Children: Efficacy and Safety in Asthma

Chlamydia pneumoniae infection might play a role in the pathology of asthma, but its role in infantile asthma remains obscure. The presence of Chlamydia pneumoniae was serologically determined in wheezing infants who were then re-examined 1-year later to determine whether or not asthma is associated with this type of infection. Wheezing infants progressed to asthma more frequently after infection with Chlamydia pneumoniae than those who were not infected. These findings suggested that Chlamydia pneumoniae infection triggers asthma in wheezy infants.     

Injury Risk in Children with Asthma

Background. Asthma is the most common chronic illness in American children. Injury is the most common acute medical condition and also the leading cause of mortality. Previous research examining possible links between pediatric asthma and injury is inconclusive. Objective. This study investigates the relationship between pediatric asthma and injury. Methods. Asthma diagnosis and multiple child, parent, and family characteristics were assessed from 878 families when children were 54 months. Parents reported child injuries regularly over the next 2.5 years. Results. Children with asthma had more injuries than children without asthma, even after controlling for child, parent, and environmental covariates. Conclusions. Four-year-old children diagnosed with asthma appear to have increased risk of injury over their peers as they enter the early elementary school years, and the authors discuss the possible causes of this relationship.     

Treatment of Substance Use Disorders in Mexican American Families

Although Mexican Americans make up one of the largest U.S. minorities, comprising 11% of the general U.S. population, substance use treatment models often fail to incorporate cultural factors that affect the efficacy of treatment for this population. The authors examine the severity of substance use disorders among this population and barriers to treatment. To account for unique factors affecting Mexican American families, the authors propose a new approach for the conceptualization of roles in the alcoholic family. The authors present a case vignette to demonstrate how therapists might use the authors’ new conceptualization of family roles to more competently treat Mexican American families seeking substance use disorder treatment.     

A comparison of substance use and injury among Mexican American emergency room patients in the United States and Mexicans in Mexico

BACKGROUND: Emergency room (ER) studies have found differences in the association of alcohol with injury (intentional and unintentional) across cultures. These differences may be due to differences in drinking patterns across cultures. Few comparative data have been reported on associations of alcohol and injury between Mexican American ER patients and ER patients living in Mexico, and general population studies suggest that Mexican Americans may adopt more frequent heavy drinking patterns after migrating to the United States. METHODS: A comparative analysis of drinking, drug use, and injury was performed in probability samples of 550 ER patients from Santa Clara County (San Jose, CA) and 1417 ER patients in Pachuca (Hidalgo), Mexico. RESULTS: Both injured and uninjured (i.e., medical conditions) patients in Pachuca were less likely to report heavy drinking, drug use, drunkenness, or alcohol-related problems compared with those in Santa Clara. Those scoring high on level of acculturation in Santa Clara were more likely to report both drinking and drug use before the event, and heavy drinking, drug use, and consequences related to drinking in the last year compared with those scoring lower. Those scoring low on acculturation were similar on substance use variables to those in the Pachuca sample. CONCLUSIONS: Findings suggest that alcohol's association with injury may not just reflect typical drinking patterns in a culture. Among Mexican Americans, this association my vary by acculturation, and those migrating to the United States may be at increased risk for alcohol-related injury as their drinking patterns undergo change to those of the dominant culture. The ER, in this context, may take on increasing importance as a site for health services providers to implement intervention and prevention services for alcohol-related consequences in this ethnic group.     

Relationship between frailty and cognitive decline in older Mexican Americans

OBJECTIVES: To examine the association between frailty status and change in cognitive function over time in older Mexican Americans. DESIGN: Data used were from the Hispanic Established Population for the Epidemiological Study of the Elderly. SETTING: Five southwestern states: Texas, New Mexico, Colorado, Arizona, and California. PARTICIPANTS: One thousand three hundred seventy noninstitutionalized Mexican‐American men and women aged 65 and older with a Mini‐Mental State Examination (MMSE) score of 21 or higher at baseline (1995/96). MEASUREMENTS: Frailty, defined as three or more of the following components: unintentional weight loss of more than 10 pounds, weakness (lowest 20% in grip strength), self‐reported exhaustion, slow walking speed (lowest 20% in 16‐foot walk time in seconds), and low physical activity level (lowest 20% on Physical Activity Scale for the Elderly score). Information about sociodemographic factors, MMSE score, medical conditions (stroke, heart attack, diabetes mellitus, arthritis, cancer, and hypertension), depressive symptoms, and visual impairment was obtained. RESULTS: Of the 1,370 subjects, 684 (49.9%) were not frail, 626 (45.7%) were prefrail (1–2 components), and 60 (4.4%) were frail (≥3 components) in 1995/96. Using general linear mixed models, it was found that frail subjects had greater cognitive decline over 10 years than not frail subjects (estimate=?0.67, standard error=0.13; P<.001). This association remained statistically significant after controlling for potential confounding factors. CONCLUSION: Frail status in older Mexican Americans with MMSE scores of 21 or higher at baseline is an independent predictor of MMSE score decline over a 10‐year period. Future research is needed to establish pathophysiological components that can clarify the relationship between frailty and cognitive decline.     

Risk factors for liver disease among adults of Mexican descent in the United States and Mexico

AIM To compare the prevalence of chronic liver disease(CLD) risk factors in a representative sample of MexicanAmericans born in the United States(US) or Mexico, to a sample of adults in Mexico.METHODS Data for Mexican-Americans in the US were obtained from the 1999-2014 National Health and Nutrition Examination Survey(NHANES), which includes persons of Mexican origin living in the US(n = 4274). The NHANES sample was restricted to Mexican-American participants who were 20 years and older, born in the US or Mexico, not pregnant or breastfeeding, and with medical insurance.The data in Mexico were obtained from the 2004-2013 Health Worker Cohort Study in Cuernavaca, Mexico(n =9485). The following known risk factors for liver disease/cancer were evaluated: elevated aminotransferase levels(elevated alanine aminotransferase was defined as 40 IU/L for males and females; elevated aspartate aminotransferase was defined as 40 IU/L for males and females), infection with hepatitis B or hepatitis C,metabolic syndrome, high total cholesterol, diabetes,obesity, abdominal obesity, and heavy alcohol use. The main independent variables for this study classified individuals by country of residence(i.e., Mexico vs the US) and place of birth(i.e., US-born vs Mexico-born).Regression analyses were used to investigate CLD risk factors.RESULTS After adjusting for socio-demographic characteristics,Mexican-American males were more likely to be obese,diabetic, heavy/binge drinkers or have abdominal obesity than males in Mexico. The adjusted multivariate results for females also indicate that Mexican-American females were significantly more likely to be obese, diabetic, be heavy/binge drinkers or have abdominal obesity than Mexican females. The prevalence ratios and prevalence differences mirror the multivariate analysis findings for the aforementioned risk factors, showing a greater risk among US-born as compared to Mexico-born MexicanAmericans. CONCLUSION In this study, Mexican-Americans in the US had more risk factors for CLD than their counterparts in Mexico.These findings can be used to design and implement more effective health promotion policies and programs to address the specific factors that put Mexicans at higher risk of developing CLD in both countries.